The first vaccine ever developed was used to combat and fight a smallpox, a disease resulting of infection by a virus

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• As soon as they arrived at the hotel they took the elevator to their room and straight to bed cause they were so tired.

• The local economy which once used to be crisis now depends to a great extent on menial jobs provided by the recent developmen ecotourism.

• The diary it (A) was kept secret until the end of the war in fear of repris by the occupying army.

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• Even the smallest pulley can be done stronger by adding wheels to its system to create leverage

• The organizers of the charity were moren surprised at how many people lined up to receive the clothes donating (by the outdoing mayo

• The Wright brothers, owner of a bicycle shop, used a number of bicycle parts to make original motorized plane.

• If (A) we come homeon time, our step-mother will be angry.

• .............. more time, my essay would be better.

• Polio, one of a group of spin inflammations, causes fever and paralysis often resulting in disable and deform

• Choose the correct answer to each of the following questions. "You may choose one _____ the five World Heritage Sites in Viet Nam included in this leaflet to visit on your next field trip."

• ____ UNESCO criteria for outstanding universal value to humanity, Trang An Scenic Landscape Complex was added to the World Heritage List in 2014.

• Mark the letter A, B, C, or D to indicate the word that differs from the other three in the position of primary stress in each of the following questions.

• The magazine _____ by more people if it had better articles. 

• Geologists find it useful to identification fossils in a rock sample because certain assemblages of species are character of speci geologic time periods.

• In the 1800’s botanist Asa Gray worked to desc and classifying the plants found North America.

• No sooner had the secretary hang up than phone rang again 

• In order to get married in this state, one must present medical report along with your identification

• Running along the 180th meridian, International Date Line is separated one from another

• The team leader demanded from his team members a serious attitude towards work, good team spirit, that they work har.

• A light year is the distance that light travels in one year calculated by using the speed of 186,284 miles the second as a base.